/deep/.ui-fieldset {
    width: 500px;
    margin: 50px auto 0;
    padding: 50px;
}

section {
    margin-bottom: 20px;
}

.subject-input, /deep/.ui-multiselect, .content-input{
    width: 500px;;
}

textarea {
    height: 500px;
    resize: none;
}

section button {
    float: right;
    margin-left: 20px;
}